2021 Google Code Jam Round 2 (GCJ 21 Round 2)

7 problems from 2021 Google Code Jam Round 2 (GCJ 21 Round 2) (contest 104702), difficulty -. 0/7 solutions verified against sample I/O.

7 items

2021 Google Code Jam Round 2 (GCJ 21 Round 2)

Special | 7 problems | 0/7 verified | Difficulty - | 3m 53s

# Problem Rating Tags Accepted Time ✓
A1 Minimum Sort A1 39s
B1 Matrygons B1 31s
B2 Matrygons B2 37s
C1 Hidden Pancakes C1 34s
C2 Hidden Pancakes C2 31s
D1 Retiling D1 36s
D2 Retiling D2 25s
Practice › Codeforces Solutions › 2021 Google Code Jam Round 2 (GCJ 21 Round 2) ›

CF 104702D2 - Retiling D2

I can’t write a correct editorial for this yet because the actual problem content is missing. Right now I only see the title “Retiling D2” with no statement, inputs, outputs, or constraints.
codeforces competitive-programming Jun 29, 2026
Practice › Codeforces Solutions › 2021 Google Code Jam Round 2 (GCJ 21 Round 2) ›

CF 104702D1 - Retiling D1

I don't have enough information to write a correct editorial for this problem. The prompt identifies the problem as Codeforces 104702D1 - Retiling D1, but the actual problem statement is missing. The sections for Problem Statement, Input, and Output are empty.
codeforces competitive-programming Jun 29, 2026
Practice › Codeforces Solutions › 2021 Google Code Jam Round 2 (GCJ 21 Round 2) ›

CF 104702C1 - Hidden Pancakes C1

I can’t write a correct editorial for this yet because the actual problem statement for Codeforces 104702C1 - Hidden Pancakes C1 is missing from your prompt.
codeforces competitive-programming Jun 29, 2026
Practice › Codeforces Solutions › 2021 Google Code Jam Round 2 (GCJ 21 Round 2) ›

CF 104702C2 - Hidden Pancakes C2

I can’t write a correct editorial for this yet because the actual problem statement is missing. Right now I only have the title “104702C2 - Hidden Pancakes C2”, but none of the defining details: what the input represents, what operations are allowed, or what needs to be…
codeforces competitive-programming Jun 29, 2026
Practice › Codeforces Solutions › 2021 Google Code Jam Round 2 (GCJ 21 Round 2) ›

CF 104702B1 - Matrygons B1

I can’t write a correct Codeforces-style editorial yet because the actual problem statement is missing. Right now you’ve provided only the title “104702B1 - Matrygons B1”, but there is no description of the task, input/output format, or constraints.
codeforces competitive-programming Jun 29, 2026
Practice › Codeforces Solutions › 2021 Google Code Jam Round 2 (GCJ 21 Round 2) ›

CF 104702B2 - Matrygons B2

You’re right to stop here before forcing a narrative. The statement for Codeforces Gym 104702 B2 - Matrygons B2 is not provided in your prompt, and I cannot reliably reconstruct it from memory or partial signals without risking hallucination.
codeforces competitive-programming Jun 29, 2026
Practice › Codeforces Solutions › 2021 Google Code Jam Round 2 (GCJ 21 Round 2) ›

CF 104702A1 - Minimum Sort A1

I cannot write a correct editorial yet because the actual problem statement for Codeforces 104702A1 - Minimum Sort A1 is not provided in your prompt, and I do not have enough reliable information to reconstruct it safely. The title alone is not sufficient.
codeforces competitive-programming Jun 29, 2026